NPTEL Smart Grid Basics to Advanced Technologies Week 8 Assignment Answers 2024
1. Which one of the following statements is/are correct?
I. PMU installation is limited by economic and infrastructure constraints.
II. Critical buses, generator buses, and tie-line buses are prioritized for close monitoring.
- Only I
- Only II
- Both
- None
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2. Which one of the following statements is correct
I. Genetic Algorithm (GA) is robust, adaptable, and takes less execution time.
II. Binary linear programming solves a system of linear equalities or inequalities in binary unknowns (0 or 1).
- Only I
- Only II
- Both
- None of the above
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3. What are the disadvantages of a Cyber-Physical System (CPS)?
- Cyber attacks
- Network congestion
- Malicious control effects
- All of the above
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4. Which of the following is an indication of the real‐time balance between supply and demand in power system?
- Frequency
- Real Power
- Voltage
- All of the above
Answer :-
5. Match the following in respect of Frequency: An Essential Reliability Support (ERS) Serivce
1. Inertia I. Response time is in order of cycles
2. Primary freq. response II. Response time is in order of seconds
3. Secondary freq. response III. Response time in order of minutes
IV. Synchronous machines
V. Significant Communication Infrastructure
- 1 – I, IV, 2 – II, V, 3 – III, V
- 1 – I, IV, 2 – II, 3 – III, V
- 1 – II, IV, 2 – I, 3 – III, V
- 1 – I, 2 – II, IV, 3 – III, V
Answer :-
6. Which of the following statements is correct?
I. PV array provides inertia and active power control support
II. PV array provides inertia but not active power control support
III. PV array provides active power control support but not inertia
IV. PV array provides neither inertia nor active power control support
- I
- II
- III
- IV
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7. What are the different Demand Side Management strategies?
- Peak Reduction
- Flexible load
- Load growth
- All of the above
Answer :-
8. Percentage of reduction in inertia constant region wise given. Choose the correct option.
- EU-25%
- Asia-7%
- USA-15%
- South America – 10%
Answer :-
9. What is not true for a Cyber-physical system?
- Two-way flow of information and electricity.
- Efficient, safe, and secure operation for the power grid.
- Flexible, coordinated operation based on global system variables.
- It does not have communication latencies.
Answer :-
10. Followings are the list of generations. Which generation do not have both inertia and active power control capability for grid stability?
- Battery Storage
- PV array
- DFIG wind turbine generator
- Conventional synchronous generation
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